Squish some warnings in ubik/

Squish some warnings in ubik/

Remove some more warnings from the ubik/ directory
   - Remove a dangling else case from an if statement
   - Prototype ubik_dprint_25
   - Don't do (a || b()) - it's horrible, and causes warnings!
     Replace with if (!a) b();

Reviewed-on: http://gerrit.openafs.org/504
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>